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Dr. Mark Johnston, MD

Gastroenterology*

4.7 (14)

Lancaster, PA

Accepting new patients

39 years of experience

Offers telehealth

Overview
Locations
Experience
Insurance
Ratings & Reviews
About

Overview of Dr. Mark Johnston, MD

Dr. Mark Johnston, MD is a Gastroenterology Specialist in Lancaster, PA. They specialize in Gastroenterology, has 39 years of experience, and is board certified in Gastroenterology. They graduated from Hahnemann University and is affiliated with Lancaster General Hospital. Patients rated Dr. Johnston an average 4.7 star rating.

Dr. Johnston works at Practice in Lancaster, PA with other offices in Elizabethtown, PA and Ephrata, PA. They frequently treat conditions like Constipation, Nausea and Dysphagia along with other conditions at varying frequencies. They are accepting new patients and accept Aetna, Anthem and Anthem Blue Cross Blue Shield as well as other major insurance plans. Please call ahead to schedule an appointment and to confirm all accepted insurance plans.

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Dr. Johnston's Office Locations

1

Penn. Medicine Lgh Holistic Therapy
2112 Harrisburg Pike Ste 202, Lancaster, PA 17601 Directions (717) 544-3500
2

Office
2124 Harrisburg Pike Ste 214, Lancaster, PA 17601 Directions (717) 869-4600
3

Obgyn of Lancaster Norlanco Site
426 Cloverleaf Rd, Elizabethtown, PA 17022 Directions (717) 869-4600
4

Mid-atlantic Gastrointestinal Center II
4140 Oregon Pike, Ephrata, PA 17522 Directions (717) 869-4600

View All Locations

Hospital Affiliations

Admitting Hospitals

Admitting hospitals are where the provider is credentialed to see patients, perform procedures, and send patients for continuous care.

Lancaster General Hospital

Experience & Treatment Frequency

NEW FEATURE

What is treatment frequency?

Our treatment frequency feature helps you understand howoften a provider performs or treats a specificprocedure/condition compared to other doctors. Providersrank in one of four frequency categories:

Very HighFrequency
HighFrequency
NormalFrequency
May Perform

Specific procedures/conditions that don’t haveenough data are indicated with “May Perform”. We encourageyou to contact the provider with questions about theirexperience.

Search for conditions or procedures.

Constipation

Nausea

Dysphagia

Constipation

Treatment Frequency View other providers who treat this condition

Nausea

Treatment Frequency View other providers who treat this condition

Dysphagia

Treatment Frequency View other providers who treat this condition

Check your insurance

Insurance Search

Please double-check when making an appointment.

View All Accepted Carriers

Aetna
Amerihealth
Anthem
Anthem Blue Cross Blue Shield
Blue Cross Blue Shield
Buckeye Community Health Plan
Capital Blue Cross
CareFirst Blue Cross Blue Shield
Cigna
Commercial Insurance Company
CoreSource
Coventry Health Care
First Health
Gateway Health Plan
Geisinger Health Plan
Health Net
Highmark Blue Cross Blue Shield
Humana
Keystone Health Plan East
Midwest Health Plan
MultiPlan
Principal Life
UnitedHealthCare
Universal American
UPMC
UPMC Health Plan

* Please verify this information when scheduling an appointment.

Ratings & Reviews

Reviews are displayed in date order and collected from patients who have agreed to reporting accurate and fair reviews. Providers with no reviews may have a new FindCare profile, or no submitted reviews on FindCare yet.

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4.7

Average provider rating

Based on 14 ratings

Patient Ratings (14)

5 Star

(13)

4 Star

(0)

3 Star

(0)

2 Star

(0)

1 Star

(1)

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Dr. Johnston's Office & Staff

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Experience with Dr. Johnston

Level of trust in provider's decisions
How well provider explains medical condition(s)
How well provider listens and answers questions
Hpends appropriate amount of time with patients

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About Dr. Mark Johnston, MD

Specialties*

Gastroenterology
*Healthline does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

Years of Experience

39 years of experience

Languages Spoken

English

NPI Number

1003898131

Education & Certifications

Fellowship

National Naval Medical Center-Bethesda

Internship

Portsmouth Naval Hospital

Medical Education

Hahnemann University

Undergraduate School

Pennsylvania State University

Board Certifications

Gastroenterology

Frequently Asked Questions

View all frequently asked questions View less frequently asked questions

Is Dr. Mark Johnston, MD accepting new patients?

Dr. Mark Johnston, MD is accepting new patients on Healthline FindCare. You can check to see if Dr. Johnston is offering online scheduling or call the provider’s office for more information.

Does Dr. Mark Johnston, MD accept my insurance?

Dr. Johnston accepts Aetna, Anthem and Anthem Blue Cross Blue Shield, and other major insurance plans. Please call ahead to confirm all accepted insurance plans.

Does Dr. Mark Johnston, MD offer telehealth services?

Dr. Johnston has indicated that they do offer telehealth services. Please call the provider’s office at for more information.

What practice does Dr. Mark Johnston, MD work with?

Dr. Johnston works at Practice in Lancaster, PA with other offices in Elizabethtown, PA and Ephrata, PA. View the full addresses on Dr. Johnston’s profile.

What are common conditions Dr. Mark Johnston, MD treats?

Dr. Johnston has seen patients for Constipation, Nausea and Dysphagia, and more. You can see other conditions treated by Dr. Johnston on their profile. Please call the provider’s office to confirm all visit reasons.

How do patients rate Dr. Mark Johnston, MD in reviews?

14 patients have reviewed Dr. Johnston. The overall rating for this provider is 4.7. You can read verified reviews and ratings and leave your own review based on your experience with Dr. Johnston.

What are the benefits of calling vs online scheduling?

Whether a person prefers to schedule an appointment online or over the phone with Dr. Johnston, there are benefits to both methods. A person calling to schedule an with Dr. Johnston appointment can ask questions about the practice, provider availability, conditions treated, procedures performed, and if their insurance carrier is accepted. While online scheduling is quicker, easier, allows one to view a wide range of appointment times, and may provide the ability to sync with a personal calendar.

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Telehealth Options

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(717) 544-3500

Dr. Mark Johnston, MD

Overview of Dr. Mark Johnston, MD

Dr. Johnston's Office Locations

Hospital Affiliations

Admitting Hospitals

Admitting hospitals are where the provider is credentialed to see patients, perform procedures, and send patients for continuous care.

View All Accepted Carriers